Answer:
B. Colon
Explanation:
The punctuation mark that tells the reader to pay direct attention to the following information is the colon.
A colon is often used to separate two independent clauses when the second explains or illustrates the first. It also usually precedes a list, quotation, or block quotation.
The rest of the listed punctuation marks do not draw the reader's attention to the content that follows as much as the colon does.
D. Catalyst
A catalyst is a reason for an event to occur.
"Full Fathom Five", a tune composed by lutenist Robert Johnson in 1611 for the original stage production of Shakespeare's The Tempest.
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It suggests
that artificial technologies will develop the ability to reason. After a period
of Internet growth, programmers will refine the Internet by adding
intelligence. by presenting a metaphor of a dirt road being paved, and it is Internet
search engine.